Imidazoyl-β-oxo-β-benzenepropanethiomide derivative, compositions and method of use thereof

ABSTRACT

The β-oxo-β-benzenepropanethioamide derivative of the present invention has potassium channel opening action and is useful for treatment of hypertension, asthma, hypersensitive colon syndrome, and enteritis through pharmacological actions including blood vessel dilation, bronchial tract dilation, relaxation of gastrointestinal tract smooth muscle, and the like. The present invention also includes a pharmaceutical composition containing, as the active ingredient, the compound of the present invention and a method for producing the same.

This application is a division of application Ser. No. 07/996,404, filed Dec. 23, 1992 U.S. Pat. No. 5,332,833.

FIELD OF THE INVENTION

The present invention relates to novel β-oxo-β-benzenepropanethioamide derivatives. More specifically, the present invention relates to novel β-oxo-β-benzenepropanethioamide derivatives and the pharmaceutically acceptable acid addition salts thereof, having potassium channel opening action and which are useful for treatment of hypertension, asthma, hypersensitive colon syndrome and enteritis through pharmacological actions including blood vessel dilation, bronchial tract dilation, relaxation of gastrointestinal tract smooth muscle, and the like.

BACKGROUND OF THE INVENTION

As β-oxo-β-benzenepropanethioamide derivatives, there have been known N, α, α-trimethyl-β-oxobenzenepropanethioamide (Compound of the following formula (A)) and N-phenyl-α, α-dimethyl-β-oxobenzenepropanethioamide (Compound of the following formula (B)) (Bull. Soc. Chim., Fr., 1975, 829), and as the α-monomethyl derivatives thereof, there have been known the N-propyl derivative (Compound of the following formula (C)) (Tetrahedron 44, 3159(19)), the N-phenyl derivative (Compounds of the following formulas (D) and (E)) (J. Chem. Soc. Perkin I, 1988, 1739) and 4-(2-methyl-3-oxo-3-phenyl-1-thioxopropyl) morpholine (Compound of the following formula (F)) (Synthesis 1988, 556), but none of the pharmaceutical actions thereof has been reported yet. ##STR1## (In the above formulas, Me represents methyl group; nPr represents n-propyl group; and Ph represents phenyl group.)

Alternatively, a variety of compounds having anti-hypertensive action have been proposed, and it has been known, for example, that thioformamide derivatives having a heterocyclic ring such as pyridine and quinoline have an ability to lower the arterial pressure in spontaneous hypertensive rats (SHR) (see Japanese Patent Laid-open Nos. 130974/1980, 42687/1982, 7188/1984, 232281/1984, 211566/1989, 30875/1989, and 273/1990).

SUMMARY OF THE INVENTION

The present inventors have made investigations intensively based on these findings, and have found that the compounds of the present invention have potassium channel opening action. Thus, the inventors have achieved the present invention.

The gist of the present invention resides in β-oxo-β-benzenepropanethioamide derivatives represented by the following general formula (I): ##STR2## (in the above general formula (I), R¹ and R² independently represent hydrogen atom, an alkyl group of C₁ to C₆ or a cycloalkyl group of C₃ to C₆, or R¹ and R², when taken together, represent an alkylene group of C₃ to C₆ ; R³ represents hydrogen atom, an alkyl group of C₁ to C₆ or a cycloalkyl group of C₃ to C₆ ; R⁴ represents an alkyl group of C₁ to C₆ or a cycloalkyl group of C₃ to C₆ ;, or R³ and R⁴, when taken together, represent an alkylene group of C₂ to C₅ ; X¹, X² and X³ independently represent hydrogen atom, a halogen atom, an alkyl group of C₁ to C₆, a cycloalkyl group of C₃ to C₆, an alkoxy group of C₁ to C₆, trifluoromethyl group, cyano group, nitro group, a dialkylamino group of C₂ to C₁₂, sulfamoyl group, or a five-membered or six-membered heterocyclic group containing nitrogen atom as the hetero atom, which group may or may not have a substituent, except for the case that R¹ represents hydrogen atom; R² represents n-propyl group; R³ represents hydrogen atom; R⁴ represents methyl group; X¹, X² and X³ represent hydrogen atom; and the case that R¹ represents hydrogen atom; R², R³ and R⁴ represent methyl group; and X¹, X² and X³ represent hydrogen atom.)

The present invention also provides a pharmaceutical composition containing, as an active ingredient, a β-oxo-β-benzenepropanethioamide derivative of the above formula (I), an optical antipode thereof or a salt thereof.

The present invention also provides a process for the preparation of β-oxo-β-benzenepropanethioamide derivatives of the above formula (I), optical antipodes thereof or salts thereof.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will now be explained in detail. The compounds of the present invention are β-oxo-β-benzenepropanethioamide derivatives represented by the following general formula (I): ##STR3## {in the above formula (I), R¹ and R² independently represent hydrogen atom, an alkyl group of C₁ to C₆ (methyl group, propyl group, hexyl group, etc.) or a cycloalkyl group of C₃ to C₆ (cyclopropyl group, cyclohexyl group, etc.), or R¹ and R², when taken together, represent an alkylene group of C₃ to C₆ (representing azetidine ring, hexamethyleneimine ring, etc. together with the nitrogen atom to which they are bonded); R³ represents hydrogen atom, an alkyl group of C₁ to C₆ (methyl group, propyl group, hexyl group, etc.) or a cycloalkyl group of C₃ to C₆ (cyclopropyl group, cyclohexyl group, etc.); R⁴ represents an alkyl group of C₁ to C₆ (methyl group, propyl group, hexyl group, etc.) or a cycloalkyl group of C₃ to C₆ (cyclopropyl group, cyclohexyl group, etc.); or R³ and R⁴, when taken together, represent an alkylene group of C₂ to C₅ (representing cyclopropane ring, cyclohexane ring, etc. together with the carbon atom to which they are bonded); X¹, X² and X³ independently represent hydrogen atom, a halogen atom (fluorine atom, chlorine atom, bromine atom, iodine atom, etc.), an alkyl group of C₁ to C₆ (methyl group, propyl group, hexyl group, etc.), a cycloalkyl group of C₃ to C₆ (cyclopropyl group, cyclohexyl group, etc.), an alkoxy group of C₁ to C.sub. 6 (methoxy group, propoxy group, hexyloxy group), trifluoromethyl group, cyano group, nitro group, a dialkylamino group of C₂ to C₁₂ (dimethylamino group, diethylamino group, diisopropylamino group, etc.), sulfamoyl group, a five-membered or six-membered heterocyclic group containing nitrogen atom as the hetero atom (pyrrolyl group, imidazolyl group, pyrazolyl group, triazolyl group, thiazolyl group, oxazolyl group, pyridyl group, pyridazinyl group, pyridazinonyl group, pyrrolidonyl group, pyridonyl group, pyrimidinyl group, etc.), which group may or may not have a substituent [an alkyl group of C₁ to C₆ (methyl group, propyl group, hexyl group, etc.), an alkoxy group of C₁ to C₆ (methoxy group, propoxy group, hexyloxy group, etc.), a halogen atom (fluorine atom, chlorine atom, bromine atom, iodine atom, etc.), cyano group, phenyl group, an alkylthio group of C₁ to C₆ (methylthio group, propylthio group, hexylthio group, etc.), a haloalkyl group of C₁ to C₆ (methyl group, propyl group, hexyl group, etc., having one or more substituents selected from fluorine atom, chlorine atom, bromine atom, iodine atom, etc.)], except for the case that R¹ represents hydrogen atom; R² represents n-propyl group; R³ represents hydrogen atom; R⁴ represents methyl group; X¹, X² and X³ represent hydrogen atom; and the case that R¹ represents hydrogen atom; R², R³ and R⁴ represent methyl group; and X¹, X² and X³ represent hydrogen atom.)}, or the pharmaceutically acceptable acid addition salts thereof (salts of mineral acids such as hydrochloric acid, sulfuric acid, phosphoric acid, etc., or organic acids such as acetic acid, malonic acid, fumaric acid, maleic acid, methanesulfonic acid, p-toluenesulfonic acid, etc.)

Preferred examples of the compounds of the present invention include, among the above compounds, a compound wherein at least one of X¹, X² and X³ represents a halogen atom, an alkyl group of C₁ to C₆, a cycloalkyl group of C₃ to C₆, an alkoxy group of C₁ to C₆, trifluoromethyl group, cyano group, nitro group, a dialkylamino group of C₂ to C₁₂, sulfamoyl group, a five-membered or six-membered heterocyclic group containing nitrogen atom as the hetero atom, which group may or may not have a substituent.

More preferred compounds include, among the above compounds, a compound wherein at least one of X¹, X² and X³ represents a five-membered or six-membered heterocyclic group containing nitrogen atom as the hetero atom, which group may or may not have a substituent.

As the five-membered or six-membered heterocyclic group, preference is given to pyrrolyl group, imidazolyl group, pyrazolyl group, triazolyl group, pyridyl group and pyridonyl group; in particular, imidazolyl group is preferable.

As the substituent on the heterocyclic ring, preference is given to an alkyl group of C₁ to C₆, a halogen atom, phenyl group and an alkylthio group; in particular, a halogen atom is preferable.

Specific examples of the compounds of the present invention are shown hereinbelow in Table 1.

                                      TABLE 1                                      __________________________________________________________________________     Com-                                                                           pound                                                                          No. R.sup.1                                                                            R.sup.2                                                                               R.sup.3                                                                             R.sup.4                                                                              X.sup.1         X.sup.2  X.sup.3                     __________________________________________________________________________      1  H   H      H    methyl                                                                               H               H        H                            2  H   H      H    methyl                                                                               2-(1-imidazoyl) H        H                            3  H   H      H    methyl                                                                               3-(1-imidazolyl)                                                                               H        H                            4  H   H      H    methyl                                                                               4-(1-imidazolyl)                                                                               H        H                            5  H   H      H    methyl                                                                               4-fluoro        H        H                            6  H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                            7  H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methyl-1-imidazolyl)                                                                      H        H                            8  H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-ethyl-1-imidazolyl)                                                                       H        H                            9  H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-isopropyl-1-imidazolyl)                                                                   H        H                            10 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-propyl-1-imidazolyl)                                                                      H        H                            11 H   H      --CH.sub.2 CH.sub.2 CH.sub. 2 --                                                          4-(2-phenyl-1-imidazolyl)                                                                      H        H                            12 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-iodo-1-imidazolyl)                                                                        H        H                            13 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methoxy-1-imidazolyl)                                                                     H        H                            14 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methylthio-1-imidazolyl)                                                                  H        H                            15 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-cyano-1-imidazolyl)                                                                       H        H                            16 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-chloro-1-imidazolyl)                                                                      H        H                            17 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methyl-1-imidazolyl)                                                                      H        H                            18 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(4-methyl-1-imidazolyl)                                                                      H        H                            19 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(5-methyl-1-imidazolyl)                                                                      H        H                            20 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-fluoromethyl-1-imidazolyl)                                                                H        H                            21 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-difluoromethyl-1-imidazolyl)                                                              H        H                            22 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                            23 H   H      --CH.sub. 2 CH.sub.2 CH.sub.2 --                                                          4-(4,5-dichloro-1-imidazolyl)                                                                  H        H                            24 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-fluoro H                            25 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-chloro H                            26 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-bromo  H                            27 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-iodo   H                            28 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-cyano  H                            29 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-methyl H                            30 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-ethyl  H                            31 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                            32 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-propyl H                            33 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-methoxy                                                                               H                            34 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-ethoxy H                            35 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                            36 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-propoxy                                                                               H                            37 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                            38 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               H        H                            39 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methyl-1-imidazolyl)                                                                      H        H                            40 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-ethyl-1-imidazolyl)                                                                       H        H                            41 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-isopropyl-1-imidazolyl)                                                                   H        H                            42 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-propyl-1-imidazolyl)                                                                      H        H                            43 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-phenyl-1-imidazolyl)                                                                      H        H                            44 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-iodo-1-imidazolyl)                                                                        H        H                            45 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methoxy-1-imidazolyl)                                                                     H        H                            46 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methylthio-1-imidazolyl)                                                                  H        H                            47 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-cyano-1-imidazolyl)                                                                       H        H                            48 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-chloro-1-imidazolyl)                                                                      H        H                            49 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methyl-1-imidazolyl)                                                                      H        H                            50 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(4-methyl-1-imidazolyl)                                                                      H        H                            51 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(5-methyl-1-imidazolyl)                                                                      H        H                            52 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-fluoromethyl-1-imidazolyl)                                                                H        H                            53 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-difluoromethyl-1-imidazolyl)                                                              H        H                            54 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                            55 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(4,5-dichloro-1-imidazolyl)                                                                  H        H                            56 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-fluoro H                            57 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-chloro H                            58 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-bromo  H                            59 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-iodo   H                            60 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-cyano  H                            61 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-methyl H                            62 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-ethyl  H                            63 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-isopropyl                                                                             H                            64 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-propyl H                            65 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-methoxy                                                                               H                            66 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               3-ethoxy H                            67 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-isopropoxy                                                                            H                            68 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-propoxy                                                                               H                            69 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-trifluoeomethyl                                                                       H                            70 H   H      --CH.sub.2 CH.sub. 2 CH.sub.2 --                                                          3-(1-imidazolyl)                                                                               H        H                            71 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methoxy-1-imidazolyl)                                                                     H        H                            72 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methylthio-1-imidazolyl)                                                                  H        H                            73 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               H        H                            74 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-methyl-1-imidazolyl)                                                                      H        H                            75 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-ethyl-1-imidazolyl)                                                                       H        H                            76 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-isopropyl-1-imidazolyl)                                                                   H        H                            77 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-propyl-1-imidazolyl)                                                                      H        H                            78 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-phenyl-1-imidazolyl)                                                                      H        H                            79 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-iodo-1-imidazolyl)                                                                        H        H                            80 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-methoxy-1-imidazolyl)                                                                     H        H                            81 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-methylthio-1-imidazolyl)                                                                  H        H                            82 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-cyano-1-imidazolyl)                                                                       H        H                            83 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-chloro-1-imidazolyl)                                                                      H        H                            84 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-metyl-1-imidazolyl)                                                                       H        H                            85 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(4-metyl-1-imidazolyl)                                                                       H        H                            86 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(5-metyl-1-imidazolyl)                                                                       H        H                            87 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-fluoromethyl-1-imidazolyl)                                                                H        H                            88 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-difluoromethyl-1-imidazolyl)                                                              H        H                            89 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                            90 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(4,5-dichloro-1-imidazolyl)                                                                  H        H                            91 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-fluoro H                            92 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-chloro H                            93 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-bromo  H                            94 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-iodo   H                            95 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-cyano  H                            96 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-methyl H                            97 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-ethyl  H                            98 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                            99 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-propyl H                           100 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           101 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-ethoxy H                           102 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           103 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           104 H   H      --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           105 H   H      methyl                                                                              methyl                                                                               H               H        H                           106 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               H        H                           107 H   H      methyl                                                                              methyl                                                                               4-(2-methyl-1-imidazolyl)                                                                      H        H                           108 H   H      methyl                                                                              methyl                                                                               4-(2-ethyl-1-imidazolyl)                                                                       H        H                           109 H   H      methyl                                                                              methyl                                                                               4-(2-isopropyl-1-imidazolyl)                                                                   H        H                           110 H   H      methyl                                                                              methyl                                                                               4-(2-propyl-1-imidazolyl)                                                                      H        H                           111 H   H      methyl                                                                              methyl                                                                               4-(2-phenyl-1-imidazolyl)                                                                      H        H                           112 H   H      methyl                                                                              methyl                                                                               4-(2-iodo-1-imidazolyl)                                                                        H        H                           113 H   H      methyl                                                                              methyl                                                                               4-(2-methoxy-1-imidazolyl)                                                                     H        H                           114 H   H      methyl                                                                              methyl                                                                               4-(2-methylthio-1-imidazolyl)                                                                  H        H                           115 H   H      methyl                                                                              methyl                                                                               4-(2-cyano-1-imidazolyl)                                                                       H        H                           116 H   H      methyl                                                                              methyl                                                                               4-(2-chloro-1-imidazolyl)                                                                      H        H                           117 H   H      methyl                                                                              methyl                                                                               4-(2-methyl-1-imidazolyl)                                                                      H        H                           118 H   H      methyl                                                                              methyl                                                                               4-(4-methyl-1-imidazolyl)                                                                      H        H                           119 H   H      methyl                                                                              methyl                                                                               4-(5-methyl-1-imidazolyl)                                                                      H        H                           120 H   H      methyl                                                                              methyl                                                                               4-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           121 H   H      methyl                                                                              methyl                                                                               4-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           122 H   H      methyl                                                                              methyl                                                                               4-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           123 H   H      methyl                                                                              methyl                                                                               4-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           124 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-fluoro H                           125 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-chloro H                           126 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-bromo  H                           127 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-iodo   H                           128 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-cyano  H                           129 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-methyl H                           130 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-ethyl  H                           131 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                           132 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-propyl H                           133 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           134 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-ethoxy H                           135 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           136 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           137 H   H      methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           138 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               H        H                           139 H   H      methyl                                                                              methyl                                                                               3-(2-methyl1-imidazolyl)                                                                       H        H                           140 H   H      methyl                                                                              methyl                                                                               3-(2-ethyl1-imidazolyl)                                                                        H        H                           141 H   H      methyl                                                                              methyl                                                                               3-(2-isopropyl-1-imidazolyl)                                                                   H        H                           142 H   H      methyl                                                                              methyl                                                                               3-(2-propyl-1-imidazolyl)                                                                      H        H                           143 H   H      methyl                                                                              methyl                                                                               3-(2-phenyl-1-imidazolyl)                                                                      H        H                           144 H   H      methyl                                                                              methyl                                                                               3-(2-iodo-1-imidazolyl)                                                                        H        H                           145 H   H      methyl                                                                              methyl                                                                               3-(2-methoxy-1-imidazolyl)                                                                     H        H                           146 H   H      methyl                                                                              methyl                                                                               3-(2-methylthio-1-imidazolyl)                                                                  H        H                           147 H   H      methyl                                                                              methyl                                                                               3-(2-cyano-1-imidazolyl)                                                                       H        H                           148 H   H      methyl                                                                              methyl                                                                               3-(2-chloro-1-imidazolyl)                                                                      H        H                           149 H   H      methyl                                                                              methyl                                                                               3-(2-methyl-1-imidazolyl)                                                                      H        H                           150 H   H      methyl                                                                              methyl                                                                               3-(4-methyl-1-imidazolyl)                                                                      H        H                           151 H   H      methyl                                                                              methyl                                                                               3-(5-methyl-1-imidazolyl)                                                                      H        H                           152 H   H      methyl                                                                              methyl                                                                               3-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           153 H   H      methyl                                                                              methyl                                                                               3-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           154 H   H      methyl                                                                              methyl                                                                               3-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           155 H   H      methyl                                                                              methyl                                                                               3-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           156 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-fluoro H                           157 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-chloro H                           158 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-bromo  H                           159 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-iodo   H                           160 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-cyano  H                           161 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-methyl H                           162 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-ethyl  H                           163 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-isopropyl                                                                             H                           164 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-propyl H                           165 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-methoxy                                                                               H                           166 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-ethoxy H                           167 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-iospropoxy                                                                            H                           168 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-propoxy                                                                               H                           169 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-trifluoromethyl                                                                       H                           170 H   H      methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               H        H                           171 H   H      methyl                                                                              methyl                                                                               3-(2-methoxy-1-imidazolyl)                                                                     H        H                           172 H   H      methyl                                                                              methyl                                                                               3-(2-methylthio-1-imidazolyl)                                                                  H        H                           173 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               H        H                           174 H   H      methyl                                                                              methyl                                                                               2-(2-methyl-1-imidazolyl)                                                                      H        H                           175 H   H      methyl                                                                              methyl                                                                               2-(2-ethyl-1-imidazolyl)                                                                       H        H                           176 H   H      methyl                                                                              methyl                                                                               2-(2-isopropyl-1-imidazolyl)                                                                   H        H                           177 H   H      methyl                                                                              methyl                                                                               2-(2-propyl-1-imidazolyl)                                                                      H        H                           178 H   H      methyl                                                                              methyl                                                                               2-(2-phenyl-1-imidazolyl)                                                                      H        H                           179 H   H      methyl                                                                              methyl                                                                               2-(2-iodo-1-imidazolyl)                                                                        H        H                           180 H   H      methyl                                                                              methyl                                                                               2-(2-methoxy-1-imidazolyl)                                                                     H        H                           181 H   H      methyl                                                                              methyl                                                                               2-(2-methylthio-1-imidazolyl)                                                                  H        H                           182 H   H      methyl                                                                              methyl                                                                               2-(2-cyano-1-imidazolyl)                                                                       H        H                           183 H   H      methyl                                                                              methyl                                                                               2-(2-chloro-1-imidazolyl)                                                                      H        H                           184 H   H      methyl                                                                              methyl                                                                               2-(2-methyl-1-imidazolyl)                                                                      H        H                           185 H   H      methyl                                                                              methyl                                                                               2-(4-methyl-1-imidazolyl)                                                                      H        H                           186 H   H      methyl                                                                              methyl                                                                               2-(5-methyl-1-imidazolyl)                                                                      H        H                           187 H   H      methyl                                                                              methyl                                                                               2-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           188 H   H      methyl                                                                              methyl                                                                               2-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           189 H   H      methyl                                                                              methyl                                                                               2-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           190 H   H      methyl                                                                              methyl                                                                               2-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           191 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-fluoro H                           192 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-chloro H                           193 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-bromo  H                           194 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-iodo   H                           195 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-cyano  H                           196 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-methyl H                           197 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-ethyl  H                           198 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                           199 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-propyl H                           200 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           201 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-ethoxy H                           202 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           203 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           204 H   H      methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           205 H   H      methyl                                                                              methyl                                                                               4-cyano         H        H                           206 H   H      methyl                                                                              methyl                                                                               4-chloro        H        H                           207 H   methyl H    H     H               H        H                           208 H   methyl H    H     4-fluoro        H        H                           209 H   methyl H    H     4-methoxy       H        H                           210 H   methyl H    H     2-(1-imidazolyl)                                                                               H        H                           211 H   methyl H    H     3-(1-imidazolyl)                                                                               H        H                           212 H   methyl H    H     4-(1-imidazolyl)                                                                               H        H                           213 H   methyl H    H     4-(1-imidazolyl)                                                                               3-chloro H                           214 H   methyl H    ethyl 4-(1-imidazolyl)                                                                               H        H                           215 H   methyl H    isopropyl                                                                            4-(1-imidazolyl)                                                                               H        H                           216 H   methyl H    propyl                                                                               4-(1-imidazolyl)                                                                               H        H                           217 H   methyl H    hexyl H               H        H                           218 H   methyl methyl                                                                              methyl                                                                               4-methyl        H        H                           219 H   methyl methyl                                                                              methyl                                                                               4-methoxy       H        H                           220 H   methyl methyl                                                                              methyl                                                                               4-dimethylamino H        H                           221 H   methyl methyl                                                                              methyl                                                                               4-fluoro        H        H                           222 H   methyl methyl                                                                              methyl                                                                               4-bromo         H        H                           223 H   methyl methyl                                                                              methyl                                                                               4-chloro        H        H                           224 H   methyl methyl                                                                              methyl                                                                               4-cyano         H        H                           225 H   methyl methyl                                                                              methyl                                                                               4-trifluoromethyl                                                                              H        H                           226 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               H        H                           227 H   methyl methyl                                                                              methyl                                                                               4-(2-methyl-1-imidazolyl)                                                                      H        H                           228 H   methyl methyl                                                                              methyl                                                                               4-(2-ethyl-1-imidazolyl)                                                                       H        H                           229 H   methyl methyl                                                                              methyl                                                                               4-(2-isopropyl-1-imidazolyl)                                                                   H        H                           230 H   methyl methyl                                                                              methyl                                                                               4-(2-propyl-1-imidazolyl)                                                                      H        H                           231 H   methyl methyl                                                                              methyl                                                                               4-(2-phenyl-1-imidazolyl)                                                                      H        H                           232 H   methyl methyl                                                                              methyl                                                                               4-(2-iodo-1-imidazolyl)                                                                        H        H                           233 H   methyl methyl                                                                              methyl                                                                               4-(2-methoxy-1-imidazolyl)                                                                     H        H                           234 H   methyl methyl                                                                              methyl                                                                               4-(2-methylthio-1-imidazolyl)                                                                  H        H                           235 H   methyl methyl                                                                              methyl                                                                               4-(2-cyano-1-imidazolyl)                                                                       H        H                           236 H   methyl methyl                                                                              methyl                                                                               4-(2-chloro-1-imidazolyl)                                                                      H        H                           237 H   methyl methyl                                                                              methyl                                                                               4-(2-methyl-1-imidazolyl)                                                                      H        H                           238 H   methyl methyl                                                                              methyl                                                                               4-(4-methyl-1-imidazolyl)                                                                      H        H                           239 H   methyl methyl                                                                              methyl                                                                               4-(5-methyl-1-imidazolyl)                                                                      H        H                           240 H   methyl methyl                                                                              methyl                                                                               4-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           241 H   methyl methyl                                                                              methyl                                                                               4-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           242 H   methyl methyl                                                                              methyl                                                                               4-(2-trimethyl-1-imidazolyl)                                                                   H        H                           243 H   methyl methyl                                                                              methyl                                                                               4-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           244 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-fluoro H                           245 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-chloro H                           246 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-bromo  H                           247 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-iodo   H                           248 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-cyano  H                           249 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-methyl H                           250 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-ethyl  H                           251 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                           252 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-propyl H                           253 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           254 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-ethoxy H                           255 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           256 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           257 H   methyl methyl                                                                              methyl                                                                               4-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           258 H   methyl methyl                                                                              methyl                                                                               4-(2-pyridyl)   H        H                           259 H   methyl methyl                                                                              methyl                                                                               4-(3-pyridyl)   H        H                           260 H   methyl methyl                                                                              methyl                                                                               4-(4-pyridyl)   H        H                           261 H   methyl methyl                                                                              methyl                                                                               3-fluoro        H        H                           262 H   methyl methyl                                                                              methyl                                                                               3-chloro        H        H                           263 H   methyl methyl                                                                              methyl                                                                               3-methyl        H        H                           264 H   methyl methyl                                                                              methyl                                                                               3-methoxy       H        H                           265 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               H        H                           266 H   methyl methyl                                                                              methyl                                                                               3-(2-ethyl-1-imidazolyl)                                                                       H        H                           267 H   methyl methyl                                                                              methyl                                                                               3-(2-isopropyl-1-imidazolyl)                                                                   H        H                           268 H   methyl methyl                                                                              methyl                                                                               3-(2-propyl-1-imidazolyl)                                                                      H        H                           269 H   methyl methyl                                                                              methyl                                                                               3-(2-phenyl-1-imidazolyl)                                                                      H        H                           270 H   methyl methyl                                                                              methyl                                                                               3-(2-iodo-1-imidazolyl)                                                                        H        H                           271 H   methyl methyl                                                                              methyl                                                                               3-(2-methoxy-1-imidazolyl)                                                                     H        H                           272 H   methyl methyl                                                                              methyl                                                                               3-(2-methylthio-1-imidazolyl)                                                                  H        H                           273 H   methyl methyl                                                                              methyl                                                                               3-(2-cyano-1-imidazolyl)                                                                       H        H                           274 H   methyl methyl                                                                              methyl                                                                               3-(2-chloro-1-imidazolyl)                                                                      H        H                           275 H   methyl methyl                                                                              methyl                                                                               3-(2-methyl-1-imidazolyl)                                                                      H        H                           276 H   methyl methyl                                                                              methyl                                                                               3-(4-methyl-1-imidazolyl)                                                                      H        H                           277 H   methyl methyl                                                                              methyl                                                                               3-(5-methyl-1-imidazolyl)                                                                      H        H                           278 H   methyl methyl                                                                              methyl                                                                               3-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           279 H   methyl methyl                                                                              methyl                                                                               3-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           280 H   methyl methyl                                                                              methyl                                                                               3-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           281 H   methyl methyl                                                                              methyl                                                                               3-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           282 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-fluoro H                           283 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-chloro H                           284 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-bromo  H                           285 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-iodo   H                           286 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-cyano  H                           287 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-methyl H                           288 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-ethyl  H                           289 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-isopropyl                                                                             H                           290 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-propyl H                           291 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-methoxy                                                                               H                           292 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-ethoxy H                           293 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-isopropoxy                                                                            H                           294 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-propoxy                                                                               H                           295 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               4-trifluoromethyl                                                                       H                           296 H   methyl methyl                                                                              methyl                                                                               3-(1-imidazolyl)                                                                               H        H                           297 H   methyl methyl                                                                              methyl                                                                               3-(2-methoxy-1-imidazolyl)                                                                     H        H                           298 H   methyl methyl                                                                              methyl                                                                               3-(2-methylthio-1-imidazolyl)                                                                  H        H                           299 H   methyl methyl                                                                              methyl                                                                               3-(2-pyridyl)   H        H                           300 H   methyl methyl                                                                              methyl                                                                               3-(3-pyridyl)   H        H                           301 H   methyl methyl                                                                              methyl                                                                               3-(4-pyridyl)   H        H                           302 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               H        H                           303 H   methyl methyl                                                                              methyl                                                                               2-(2-methyl-1-imidazolyl)                                                                      H        H                           304 H   methyl methyl                                                                              methyl                                                                               2-(2-ethyl-1-imidazolyl)                                                                       H        H                           305 H   methyl methyl                                                                              methyl                                                                               2-(2-isopropyl-1-imidazolyl)                                                                   H        H                           306 H   methyl methyl                                                                              methyl                                                                               2-(2-propyl-1-imidazolyl)                                                                      H        H                           307 H   methyl methyl                                                                              methyl                                                                               2-(2-phenyl-1-imidazolyl)                                                                      H        H                           308 H   methyl methyl                                                                              methyl                                                                               2-(2-iodo-1-imidazolyl)                                                                        H        H                           309 H   methyl methyl                                                                              methyl                                                                               2-(2-methoxy-1-imidazolyl)                                                                     H        H                           310 H   methyl methyl                                                                              methyl                                                                               2-(2-methylthio-1-imidazolyl)                                                                  H        H                           311 H   methyl methyl                                                                              methyl                                                                               2-(2-cyano-1-imidazolyl)                                                                       H        H                           312 H   methyl methyl                                                                              methyl                                                                               2-(2-chloro-1-imidazolyl)                                                                      H        H                           313 H   methyl methyl                                                                              methyl                                                                               2-(2-methyl-1-imidazolyl)                                                                      H        H                           314 H   methyl methyl                                                                              methyl                                                                               2-(4-methyl-1-imidazolyl)                                                                      H        H                           315 H   methyl methyl                                                                              methyl                                                                               2-(5-methyl-1-imidazolyl)                                                                      H        H                           316 H   methyl methyl                                                                              methyl                                                                               2-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           317 H   methyl methyl                                                                              methyl                                                                               2-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           318 H   methyl methyl                                                                              methyl                                                                               2-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           319 H   methyl methyl                                                                              methyl                                                                               2-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           320 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-fluoro H                           321 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-chloro H                           322 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-bromo  H                           323 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-iodo   H                           324 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-cyano  H                           325 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-methyl H                           326 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-ethyl  H                           327 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                           328 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-propyl H                           329 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           330 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-ethoxy H                           331 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           332 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           333 H   methyl methyl                                                                              methyl                                                                               2-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           334 H   methyl methyl                                                                              methyl                                                                               3-(2-pyridyl)   H        H                           335 H   methyl methyl                                                                              methyl                                                                               3-(3-pyridyl)   H        H                           336 H   methyl methyl                                                                              methyl                                                                               3-(4-pyridyl)   H        H                           337 H   methyl methyl                                                                              methyl                                                                               3-methoxy       4-methoxy                                                                               5-methoxy                   338 H   methyl ethyl                                                                               ethyl 4-(1-imidazolyl)                                                                               H        H                           339 H   methyl ethyl                                                                               ethyl 4-(1-imidazolyl)                                                                               3-fluoro H                           340 H   methyl hexyl                                                                               hexyl 4-(1-imidazolyl)                                                                               H        H                           341 H   methyl methyl                                                                              hexyl 4-(1-imidazolyl)                                                                               H        H                           342 H   methyl --CH.sub.2 CH.sub.2 --                                                                    4-(1-imidazolyl)                                                                               H        H                           343 H   methyl --CH.sub.2 CH.sub.2 --                                                                    3-(1-imidazolyl)                                                                               H        H                           344 H   methyl --CH.sub.2 CH.sub.2 --                                                                    2-(1-imidazolyl)                                                                               H        H                           345 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           H               H        H                           346 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-fluoro        H        H                           347 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-chloro        H        H                           348 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-bromo         H        H                           349 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-iodo          H        H                           350 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-methyl        H        H                           351 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-methoxy       H        H                           352 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-trifluoromethyl                                                                              H        H                           353 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-cyano         H        H                           354 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-nitro         H        H                           355 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-dimethylamino H        H                           356 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           357 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methyl-1-imidazolyl)                                                                      H        H                           358 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-ethyl-1-imidazolyl)                                                                       H        H                           359 H   methyl -- CH.sub.2 CH.sub.2 CH.sub.2 --                                                          4-(2-isopropyl-1-imidazolyl)                                                                   H        H                           360 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-propyl-1-imidazolyl)                                                                      H        H                           361 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-phenyl-1-imidazolyl)                                                                      H        H                           362 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-iodo-1-imidazolyl)                                                                        H        H                           363 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methoxy-1-imidazolyl)                                                                     H        H                           364 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methylthio-1-imidazolyl)                                                                  H        H                           365 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-cyano-1-imidazolyl)                                                                       H        H                           366 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-chloro-1-imidazolyl)                                                                      H        H                           367 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-methyl-1-imidazolyl)                                                                      H        H                           368 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(4-methyl-1-imidazolyl)                                                                      H        H                           369 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(5-methyl-1-imidazolyl)                                                                      H        H                           370 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           371 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           372 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-trifluoro-1-imidazolyl)                                                                   H        H                           373 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           374 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-fluoro H                           375 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-chloro H                           376 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-bromo  H                           377 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-iodo   H                           378 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-cyano  H                           379 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-methyl H                           380 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-ethyl  H                           381 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                           382 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-propyl H                           383 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           384 H   methyl -- CH.sub.2 CH.sub.2 CH.sub.2 --                                                          4-(1-imidazolyl)                                                                               3-ethoxy H                           385 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           386 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           387 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           388 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-pyridyl)   H        H                           389 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(3-pyridyl)   H        H                           390 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(4-pyridyl)   H        H                           391 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-fluoro        H        H                           392 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-chloro        H        H                           393 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-cyano         H        H                           394 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-methyl        H        H                           395 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-methoxy       H        H                           396 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               H        H                           397 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methyl-1-imidazolyl)                                                                      H        H                           398 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-ethyl-1-imidazolyl)                                                                       H        H                           399 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-isopropyl-1-imidazolyl)                                                                   H        H                           400 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-propyl-1-imidazolyl)                                                                      H        H                           401 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-phenyl-1-imidazolyl)                                                                      H        H                           402 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-iodo-1-imidazolyl)                                                                        H        H                           403 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methoxy-1-imidazolyl)                                                                     H        H                           404 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methylthio-1-imidazolyl)                                                                  H        H                           405 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-cyano-1-imidazolyl)                                                                       H        H                           406 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-chloro-1-imidazolyl)                                                                      H        H                           407 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methyl-1-imidazolyl)                                                                      H        H                           408 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(4-methyl-1-imidazolyl)                                                                      H        H                           409 H   methyl -- CH.sub.2 CH.sub.2 CH.sub.2 --                                                          3-(5-methyl-1-imidazolyl)                                                                      H        H                           410 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           411 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           412 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           413 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           414 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-fluoro H                           415 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-chloro H                           416 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-bromo  H                           417 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-iodo   H                           418 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-cyano  H                           419 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-methyl H                           420 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-ethyl  H                           421 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-isopropyl                                                                             H                           422 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-propyl H                           423 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-methoxy                                                                               H                           424 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-ethoxy H                           425 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-isopropoxy                                                                            H                           426 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-propoxy                                                                               H                           427 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-trifluoromethyl                                                                       H                           428 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               H        H                           429 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methoxy-1-imidazolyl)                                                                     H        H                           430 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-methylthio-1-imidazolyl)                                                                  H        H                           431 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(2-pyridyl)   H        H                           432 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(3-pyridyl)   H        H                           433 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(4-pyridyl)   H        H                           434 H   methyl -- CH.sub.2 CH.sub.2 CH.sub.2 --                                                          3-trifluoromethyl                                                                              4-chloro H                           435 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-methoxy       4-methoxy                                                                               H                           436 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-pyrrolyl)  H        H                           437 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-pyrazolyl) H        H                           438 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-(1,2,4-triazolyl))                                                                        H        H                           439 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-(2-pyridonyl))                                                                            H        H                           440 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-imidazolyl)                                                                               H        H                           441 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-pyridyl)   H        H                           442 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(3-pyridyl)   H        H                           443 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(4-pyridyl)   H        H                           444 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-thiazolyl) H        H                           445 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-thiazolyl) H        H                           446 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-oxazolyl)  H        H                           447 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-oxazolyl)  H        H                           448 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-pyrrolyl)  H        H                           449 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-pyridazinyl)                                                                              H        H                           450 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-pyrimidinyl)                                                                              H        H                           451 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               H        H                           452 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-methyl-1-imidazolyl)                                                                      H        H                           453 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-ethyl-1-imidazolyl)                                                                       H        H                           454 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-isopropyl-1-imidazolyl)                                                                   H        H                           455 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-propyl-1-imidazolyl)                                                                      H        H                           456 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-phenyl-1-imidazolyl)                                                                      H        H                           457 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-iodo-1-imidazolyl)                                                                        H        H                           458 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-methoxy-1-imidazolyl)                                                                     H        H                           459 H   methyl -- CH.sub.2 CH.sub.2 CH.sub.2 --                                                          2-(2-methylthio-1-imidazolyl)                                                                  H        H                           460 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-cyano-1-imidazolyl)                                                                       H        H                           461 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-chloro-1-imidazolyl)                                                                      H        H                           462 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-methyl-1-imidazolyl)                                                                      H        H                           463 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(4-methyl-1-imidazolyl)                                                                      H        H                           464 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(5-methyl-1-imidazolyl)                                                                      H        H                           465 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-fluoromethyl-1-imidazolyl)                                                                H        H                           466 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-difluoromethyl-1-imidazolyl)                                                              H        H                           467 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-trifluoromethyl-1-imidazolyl)                                                             H        H                           468 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(4,5-dichloro-1-imidazolyl)                                                                  H        H                           469 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-fluoro H                           470 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-chloro H                           471 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-bromo  H                           472 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-iodo   H                           473 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-cyano  H                           474 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-methyl H                           475 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-ethyl  H                           476 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-isopropyl                                                                             H                           477 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-propyl H                           478 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-methoxy                                                                               H                           479 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-ethoxy H                           480 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-isopropoxy                                                                            H                           481 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-propoxy                                                                               H                           482 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(1-imidazolyl)                                                                               3-trifluoromethyl                                                                       H                           483 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(2-pyridyl)   H        H                           484 H   methyl -- CH.sub.2 CH.sub.2 CH.sub.2 --                                                          2-(3-pyridyl)   H        H                           485 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-(4-pyridyl)   H        H                           486 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-cyano         H        H                           487 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-nitro         4-methoxy                                                                               H                           488 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-chloro        4-chloro H                           489 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-sulfamoyl     H        H                           490 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-propoxy       H        H                           491 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-chloro        4-chloro H                           492 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-cyano         4-cyano  H                           493 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           2-methoxy       4-methoxy                                                                               5-methoxy                   494 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --                                                  H               H        H                           495 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --                                                  4-fluoro        H        H                           496 H   methyl --CH.sub. CH.sub.2 CH.sub.2 CH.sub.2 --                                                   4-(1-imidazolyl)                                                                               H        H                           497 H   methyl --(CH.sub.2).sub.5 --                                                                     H               H        H                           498 H   ethyl  --(CH.sub.2).sub.5 --                                                                     4-(1-imidazolyl)                                                                               H        H                           499 H   ethyl  --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           500 H   ethyl  H    methyl                                                                               4-(1-imidazolyl)                                                                               H        H                           501 H   ethyl  methyl                                                                              methyl                                                                               4-(1-imidazolyl H        H                           502 H   isopropyl                                                                             --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           503 H   isoamyl                                                                               --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           504 H   cyclopropyl                                                                           --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           505 methyl                                                                             methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           506 methyl                                                                             ethyl  --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           507 --CH.sub.2 CH.sub.2 --                                                                    --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           508 --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           509 --(CH.sub.2).sub.4 --                                                                     --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           3-(1-imidazolyl)                                                                               4-methoxy                                                                               H                           510 --(CH.sub.2).sub.4 --                                                                     --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           511 --(CH.sub.2).sub.5 --                                                                     --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               H        H                           512 H   methyl methyl                                                                              methyl                                                                               3-(2-iodo-1-imidazolyl)                                                                        4-methoxy                                                                               H                           513 H   methyl methyl                                                                              methyl                                                                               3-(2-methyl-1-imidazolyl)                                                                      4-methoxy                                                                               H                           514 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(2-bromo-1-imidazolyl)                                                                       H        H                           515 H   methyl methyl                                                                              methyl                                                                               3-(2-methoxy-1-imidazolyl)                                                                     4-methoxy                                                                               H                           516 H   methyl methyl                                                                              methyl                                                                               3-(2-iodo-1-imidazolyl)                                                                        4-ethoxy H                           517 H   methyl methyl                                                                              methyl                                                                               3-(2-methyl-1-imidazolyl)                                                                      4-ethoxy H                           518 H   methyl --CH.sub.2 CH.sub.2 CH.sub.2 --                                                           4-(1-imidazolyl)                                                                               2-methoxy                                                                               H                           __________________________________________________________________________

The process for producing the compounds of the present invention will now be explained. The compounds of the present invention can be produced, for example, by the following route. ##STR4## (wherein R² represents hydrogen atom.) ##STR5## [In the above formula, R¹, R², R³, R⁴, X¹, X² and X³ are the same as defined above; and R⁵ represents an alkyl group of C₁ to C₅ or ##STR6## (wherein R⁶ represents an alkyl group of C₁ to C₅, and Y represents a halogen atom.)]

[Synthesis Route A]

Synthesis Route A is a process for producing the compounds (I) of the present invention, by reacting the acetophenone derivative (II) with an isothiocyanate compound. That is, the compounds (I) of the present invention can be produced by reacting the acetophenone derivative (II) with an isothiocyanate compound in the presence of a base, for example, sodium hydride, butyl lithium, lithium diisopropylamide or potassium t-butoxide, in a solvent at -100° to 100° C. for several minutes to several tens hours. Examples of such solvent includes tetrahydrofuran, diethyl ether, N,N-dimethylformamide, and the like, without specific limitation, if not involved in the reaction.

[Synthetic Route B]

Synthetic Route B is a process for producing the compounds (I) of the present invention, by reacting the dithioester derivative (III) with a corresponding amine compound. That is, the dithioester derivative (III) and the amine compound are reacted together in the presence of a solvent not involved in the reaction, for example, polar solvents such as water, methanol, ethanol, isopropanol, N,N-dimethylformamide, tetrahydrofuran, diethyl ether, etc. or a mixed solvent thereof, or an aromatic hydrocarbon such as benzene, toluene, xylene, etc., or in the absence of a solvent, at -20° to 140° C. for several minutes to 48 hours.

Dithioester derivatives (III) can be synthesized, for example, according to the method described hereinbelow. That is, the acetophenone derivative (II) reacts with carbon disulfide in a solvent not involved in the reaction such as tetrahydrofuran, diethyl ether, N,N-dimethylformamide, etc., in the presence of a base (including, for example, butyl lithium, lithium diisopropylamide or potassium t-butoxide or the like) at -100° to 50° C. for several minutes to several tens hours, and to the resulting solution is then added a halogenated alkyl for reaction at -50° to 50° C. for several minutes to several tens hours. Otherwise, a 2-halo-1-alkylpyridinium salt is added to the resulting solution along with a base, for example, triethylamine, pyridine, etc., for reaction at -20° to 100° C. for several minutes to several tens hours to produce the compound (III).

Other than the routes described above, the compounds of the present invention can be produced through a reaction comprising introducing a substituent (including, for example, nitration reaction) into the benzene ring of the β-oxo-β-benzenepropanethioamide derivatives.

The compounds of the present invention can be prepared into a variety of acid addition salts, if the compound has a basic substituent such as nitrogen-containing aromatic heterocyclic group or dialkylamino group, and such salts can be produced by dissolving the compound of the present invention in an appropriate solvent such as ethanol, ether, etc., thereafter adding an acid as it is or after dissolved in a solvent.

The compounds of the present invention have potassium channel opening action and are useful for treatment of hypertension, asthma, hypersensitive colon syndrome, and enteritis through pharmacological actions including blood vessel dilation, bronchial tract dilation, relaxation of gastrointestinal tract smooth muscle, and the like. The present compound are administered to humans through oral administration or parenteral administration according to routine methods. The formulation for oral dose includes granules, microfine granules, powders, tablets, hard capsules, soft capsules, syrups, emulsions, suspensions, or liquid preparations or the like. The formulation for parenteral dose includes injections, suppositories, transcutaneous agents and the like.

The compounds represented by the above general formula (I) or pharmaceutically acceptable salts thereof are contained in the above formulations, together with routine pharmaceutical additives such as solid or liquid pharmaceutical carriers or excipients, stabilizers, lubricants, sweet flavors, preservatives, suspending agents or the like.

Examples of the solid carriers to be used include galactose, kaolin, sucrose, crystal cellulose, corn starch, talc, agar, pectin, acasia, magnesium stearate, lecithin, sodium chloride, and the like. Examples of the liquid carriers include syrup, glycerine, peanut oil, polyvinylpyrrolidone, olive oil, ethanol, benzyl alcohol, propylene glycol, water and the like.

The dose of the compound of the present invention is 0.01 mg to 1000 mg/day, preferably 0.1 mg to 100 mg/day for oral administration, but preferably, the dose is appropriately modified, depending on the age, sex, pathology, symptom, the presence or absence of concurrent therapy, and the like. The dosage may be administered once/day, or may be divided into several times/day with an appropriate interval.

In producing solid formulations, excipients such as lactose, sucrose, carbohydrate, talc, cellulose, dextrin, kaolin, calcium carbonate and the like are employed. In case of liquid formulations for oral administration, such as syrups, emulsions, suspensions or liquid preparations, the above liquid carriers generally employed are used along with an appropriate auxiliary such as a lubricant, a suspension auxiliary, a sweet flavor, a flavor, a coloring agent or a preservative.

EXAMPLES

The present invention will now be explained in details with reference to examples, but the invention is not limited to the following examples without departing from the gist thereof.

EXAMPLE 1

Synthesis of 4-(1-imidazolyl)-N-methyl-β-oxo-α,α-trimethylenebenzenepropanethioamide (Compound No. 36 of Table 1) ##STR7##

(In the above formula, Me represents methylene group.)

4-(1-Cyclobutylcarbonylphenyl)-1-imidazole (2.65 g (11.7 mmol)) was dissolved in 20 ml of tetrahydrofuran, followed by dropwise addition of a solution of 1.88 g (16.8 mmol) of potassium t-butoxide in 10 ml of tetrahydrofuran at -20° C. and subsequent agitation at the same temperature for 30 minutes. To the reaction solution was added dropwise a solution of 1.73 g (234 mmol) of methyl isothiocyanate in 5 ml of tetrahydrofuran while keeping the temperature at -20° C. or less. After the completion of the dropwise addition, the reaction temperature was gradually raised for effecting agitation at 0° C. for 2 hours.

To the reaction solution was added water for extraction into chloroform. The organic phase was washed in water and aqueous saturated sodium chloride solution, dried over sodium sulfate for distilling off the solvent, and the resulting residue was purified by silica gel column chromatography (elution solvent; chloroform/methanol=50/l), to yield a crude crystal product. The product was recrystallized in toluene, to produce 1.45 g of 4-(1-imidazolyl)-N-methyl-β-oxo-α,α-trimethylenebenzenepropanethiomide. (Yield: 41.4%)

Melting point: 185°-187° C. IR absorption spectrum (KBr tablet): 1670 cm⁻¹ (C═O) NMR (solvent; CDCl₃, δ value (ppm)): 1.83 (m, 1H), 2.07 (m, 1H), 2.82 (m, 2H), 2.98 (m, 2H), 3.12 (d, 3H), 7.23 (s, 1H), 7.25-7.3 (brd, 1H), 7.33 (s, 1H), 7.46 (d, 2H), 7.93 (s, 1H), 8.14 (d, 2H)

Examples 2 to 37

Following the same method as in Example 1, the compounds shown in Table 2 were produced.

                                      TABLE 2                                      __________________________________________________________________________                Melting       NMR                                                   Example                                                                             Compound                                                                             Point   IR    Solvent; CDCl.sub.3 [(CD.sub.3).sub.2 SO in                                    Example 3],                                           No.  No.   (°C.)                                                                           (cm.sup.-1)                                                                          δ value (ppm)                                   __________________________________________________________________________      2   208   106-108 1680  1.60(d,3H), 3.17(3H,d), 5.11(q,1H),                                            7.14-7.21(m,2H),                                                               8.10-8.16(m,2H), 8.60(broad,1H)                        3   212   217-219 1685  1.37(d,3H), 2.94(d,3H), 4.83(q,1H), 7.13(s,1H)                                 7.78(d,2H), 7.85(s,1H), 7.98(d,2H), 8.39(s,1H),                                10.51(1H,broad)(DMSO-d6)                               4   220   189-190 1643  1.61(s,6H), 3.04(s,6H), 3.12(d,3H), 6.61(d,2H),                                7.87(d,2H)                                             5   221   120-122 1660  1.62(s.6H), 3.18(d,3H), 7.02-7.10(m,2H),                                       7.30(broad,1H), 7.89-7.96(m,2H)                        6   222   145     1664  1.61(s,6H), 3.17(d,3H), 7.2-7.3(broad,1H),                                     7.54(m,2H), 7.74(m,2H)                                 7   226   179     1670  1.65(s,6H), 3.20(d,3H), 7.25(s,1H),                                            7.3-7.4(broad,1H),                                                             7.44(d,2H), 7.96(1s,1H), 8.06(d,2H)                    8   261   108.5-110                                                                              1665  1.62(s,6H), 3.19(d,3H), 7.21(m,1H),                                            7.2-7.3(broad,1H),                                                             7.37(m,1H), 7.56(m,1H), 7.66(m,1H)                     9   262     101-101.5                                                                            1670  1.62(s,6H), 3.19(d,3H), 7.2-7.4(broad,1H),                                     7.32(m,1H),                                                                    7.48(m,1H), 7.75(m,1H), 7.85(m,1H)                    10   342   154.5-155.5                                                                            1670  1.50(m,2H), 1.86(m,2H), 3.11(d,3H), 7.26(s,1H),                                7.35(s,1H), 7.49(d,2H), 7.98(s,1H), 8.19(d,2H)        11   345   113-114 1647  1.78(m,1H), 2.05(m,1H), 2.83(m,2H), 2.96(m,2H),                                3.11(d,3H), 7.41(m,3H), 7.53(t,2H), 7.96(d,2H)        12   346   115-116 1660  1.80(m,1H), 2.02(m,1H), 2.83(m,2H), 2.98(m,2H),                                3.11(d,3H), 7.09(t,2H), 7.2-7.4(broad,1H),                                     8.02(m,2H)                                            13   347   152.5   1648  1.81(m,1H), 2.02(m,1H), 2.75-2.85(m,2H),                                       2.90-3.00(m,2H), 3.11(d,3H), 7.2-7.3(drs,1H),7.40                              (m,2H), 7.93(m,2H)                                    14   348   162-163 1648  1.81(m,1H), 2.02(m,1H), 2.75-2.85(m,2H), 2.90-                                 3.00(m,2H), 3.11(d,3H), 7.2-7.3(broad,1H),                                     7.55(m,2H), 7.85(m,2H)                                15   352   118.5-119                                                                              1672  1.82(m,1H), 2.06(m,1H), 2.75-2.85(m,2H), 2.93-                                 3.05(m,2H), 3.12(d,3H), 7.2-7.3(broad,1H),                                     7.68(m,2H), 8.10(m,2H)                                16   357   230     1670  1.80(m,1H), 2.05(m,1H), 2.41(s,3H), 2.88(m,2H),                                3.00(m,2H), 3.14(d,3H), 7.02(s,1H), 7.05(s,1H),                                7.3-                                                                           7.4(broad,1H), 7.37(d,2H), 8.14(d,2H)                 17   358     135-135.5                                                                            1685  1.28(t,3H), 1.80(m,1H), 2.17(m,1H), 2.70(q,2H),                                2.87(m,2H), 3.00(m,2H), 3.14(d,3H), 6.99(s,1H),                                7.07(s,1H), 7.35(d,2H), 7.3-7.4(broad,1H),                                     8.13(d,2H)                                            18   359   193-195 1675  1.26(d,6H), 1.76-1.91(m,1H), 2.01-2.18(m,1H),                                  2.80-                                                                          3.08(m,5H), 3.15(d,3H), 6.94(d,1H), 7.08(d,1H),                                7.34(broad,1H), 7.35(d,2H), 8.13(d,2H)                19   360   162-164 1675  0.90(t,3H), 1.65-1.90(m,4H), 2.00-2.15(m,1H),                                  2.64(t,2H), 2.80-2.92(m,2H), 2.97-3.08(m,2H),                                  3.15(d,3H), 6.98(d,1H), 7.08(d,1H), 7.35(d,2H),                                7.42(broad,1H), 8.12(d,2H)                            20   361   amorphous                                                                              1670  1.76-1.90(m,1H), 2.00-2.16(m,1H),                                              2.80-2.89(m,2H),                                                               2.93-3.08(m,2H), 3.13(d,3H), 7.17(d,1H),                                       7.24-7.39(m,9H), 8.01(d,2H)                           21   362   163-165 1670  1.76-1.88(m,1H), 2.01-2.14(m,1H),                                              2.80-2.92(m,2H),                                                 (decomposition)                                                                              2.97-3.08(m,2H), 3.15(d,3H), 7.20(d,1H),                                       7.23(d,1H),                                                                    7.34(broad,1H), 7.44(d,2H), 8.14(d,2H)                22   368   180     1660  1.80(m,1H), 2.05(m,1H), 2.29(s,3H), 2.80(m,2H)                                 2.98(m,2H), 3.12 (d,3H), 7.06(s,1H),                                           7.2-7.4(broad,1H),                                                             7.40(d,2H), 7.65(s,1H), 8.12(d,2H),                   23   369     220-220.5                                                                            1685  1.80(m,1H), 2.00(m,1H), 2.22(s,3H), 2.86(m,2H),                                3.00(m,2H), 3.14(d,3H), 6.93(s,1H), 7.36(d,2H),                                7.4-                                                                           7.5(broad,1H), 7.58(s,1H), 8.16(d,2H)                 24   373   184-186 1665  1.76-1.92(m,1H), 2.00-2.18(m,1H),                                              2.79-2.91(m,2H),                                                               2.96-3.08(m,2H), 3.14(d,3H), 7.33(broad,1H),                                   7.45(d,2H), 7.57(s,1H), 8.18(d,2H)                    25   374   162-164 1670  1.83(m,1H), 2.07(m,1H), 2.87(m,2H), 2.99(m,2H),                                3.13(d,3H), 7.25(s,1H), 7.32(s,1H),                                            7.7-7.9(broad, 1H),                                                            7.47(t,1H), 7.92(s,1H), 7.95(m,2H)                    26   375   173     1670  1.83(m,1H), 2.05(m,1H), 2.80-2.90(m,2H), 2.95-                                 3.02(m,2H), 3.12(d,3H), 7.19(m,1H), 7.22(m,1H),                                7.2-                                                                           7.3(broad,1H), 7.38(d,1H), 7.75(s,1H),                                         8.02(m,1H), 8.23(d,1H)                                27   378   156     2250, 1680                                                                           1.85(m,1H), 2.05(m,1H), 2.80-2.90(m,2H), 2.85-                                 3.03(m,2H), 3.12(d,3H), 7.29(s,1H), 7.41(m,1H),                                7.5-                                                                           7.6(broad,1H), 7.50-7.54(d,1H), 7.94(s,1H),                                    8.38-8.42(m,1H), 8.50(m,1H)                           28   392   119.5-120                                                                              1663  1.81(m,1H), 2.02(m,1H), 2.75-2.85(m,2H), 2.92-                                 3.05(m,2H), 3.11(d,3H), 7.2-7.3(broad,1H),                                     7.35(t,1H),                                                                    7.50(m,1H), 7.85(d,1H), 7.97(d,1H)                    29   396   198     1671  1.83(m,1H), 2.05(m,1H), 2.80-2.90(m,2H),                                       2.95(m,2H), 3.13(d,3H), 7.24(s,1H),                                            7.2-7.3(broad,1H),                                                             7.34(s,1H), 7.50-7.57(m,2H), 7.80-7.93(m,2H),                                  8.14(s,1H)                                            30   404   147.5-149.5                                                                            1670  1.83(m,1H), 2.07(m,1H), 2.62(s,3H), 2.90(m,2H),                                2.99(m,2H), 3.13(d,3H), 7.13(s,1H), 7.18(s,1H),                                7.25-                                                                          7.4(broad,1H), 7.5-7.6(m,2H), 8.02-8.06(m,2H)         31   434   137     1666  1.82(m,1H), 2.04(m,1H), 2.75-2.85(m,2H), 2.93-                                 3.03(m,2H), 3.11(d,3H), 7.2-7.3(broad,1H),                                     7.55(m,1H), 8.12(m,1H), 8.38(m,1H)                    32   437   177-179 1655  1.80(m,1H), 2.06(m,1H), 2.85(m,2H), 3.01(m,2H),                                3.12(d,3H), 6.51(dd,1H), 7.2-7.4(broad,1H),                                    7.75(d,1H), 7.77(d,2H), 7.98(d,1H), 8.09(d,2H)        33   438     200-200.5                                                                            1665  1.80(m,1H), 2.06(m,1H), 2.87(m,2H), 3.00(m,2H),                                3.12(d,3H), 7.2-7.3(broad,1H), 7.79(d,2H),                                     8.13(s,1H), 8.16(d,2H), 8.63(s,1H)                    34   439     209-209.5                                                                            1670  1.80(m,1H), 2.65(m,1H), 2.83(m,1H), 2.98(m,1H),                                3.12(d,3H), 6.27(t,1H), 6.67(d,1H), 7.29(m,1H),                                7.2-                                                                           7.3(broad,1H), 7.40(m,1H), 7.46(d,2H),                                         8.13(d,2H)                                            35   495   110-111 1662  1.58(m,2H), 1.77(m,2H), 3.11(d,3H), 7.05(m,2H),                                7.1-7.2(broad,1H), 8.04(m,2H)                         36   496   175-176 1673  1.59(m,2H), 1.79(m,2H), 2.4-2.6(m,4H),                                         3.13(d,3H),                                                                    7.23(s,1H), 7.33(s,1H), 7.44(d,2H), 7.93(s,1H),                                8.15(d,2H)                                            37   500   206.5-207.5                                                                            1680  1.27(t,3H), 1.61(d,3H), 3.68(m,2H), 5.15(q,1H),                                7.2-                                                                           7.3(broad,1H), 7.26(s,1H), 7.53(d,2H),                                         7.99(s,1H), 8.24(d,2H)                                38   514   205-207 1678  1.76-1.90(m,1H), 2.01-2.15(m,1H),                                              2.80-2.91(m,2H),                                                               2.96-3.08(m,2H), 3.14(d,3H), 7.16(s,2H),                                       7.34(d,1H), 7.46(dd,2H), 8.14(dd,2H)                  39   518   168     1658  1.75(m,1H), 2.04(m,1H), 2.63(m,2H), 2.90(m,2H),                                3.17(d,3H), 3.88(s,3H), 6.89(d,1H),                                            7.04(dd,1H),                                                                   7.23(d,1H), 7.31(d,1H), 7.60(broad,1H),                                        7.78(d,1H)                                            __________________________________________________________________________

Reference Example 1

Synthesis of 4-(1-imidazolyl)-S-methyl-β-oxo-α,α-trimethylenebenzenepropane dithioester ##STR8##

4-(1-Cyclobutylcarbonylphenyl)-1-imidazole (1.00 g (4.42 mmol)) was dissolved in 15 ml of tetrahydrofuran, followed by dropwise addition of a solution of 0.64 g (5.7 mmol) of potassium t-butoxide in 7 ml of tetrahydrofuran at -30° C. and subsequent agitation at the same temperature for 20 minutes. To the reaction solution was then added dropwise a solution of 0.50 g (6.6 mmol) of carbon disulfide in 4 ml of tetrahydrofuran at -20° C. for agitation for 20 minutes, followed by dropwise addition of 0.83 g (5.9 mmol) of methyl iodide in 4 ml of tetrahydrofuran at the same temperature. The reaction temperature was gradually raised to room temperature for effecting agitation for 30 minutes, followed by addition of water for extraction into chloroform. After washing in water and aqueous saturated sodium chloride solution and drying over sodium sulfate for distilling off the solvent, the resulting crude crystal product was recrystallized in a mixed solvent of toluene and hexane, to yield 1.06 g of 4-(1-imidazolyl)-S-methyl-β-oxo-α,α-trimethylene benzenepropane dithioester. (Yield: 75.4%)

Example 40

Synthesis of N-ethyl-4-(1-imidazolyl)-β-oxo-α,α-trimethylenebenzenepropanethioamide (Compound No. 499 of Table 1) ##STR9##

(In the above formula, Me represents methylene group; and Et represents ethyl group.)

4-(1-Imidazolyl)-S-methyloxo-α,α-trimethylenebenzenepropane dithioester (315 mg (1.00 mmol)) was dissolved in 10 ml of isopropanol, followed by addition of a solution of 0.18 g (3.9 mmol) of ethylamine in 0.8 ml of isopropanol for agitation at room temperature for 2 days. Adding water for extraction into chloroform, the chloroform phase was washed in water and aqueous saturated sodium chloride solution, dried over sodium sulfate for distilling off the solvent, and the resulting residue was purified by silica gel column chromatography (elution solvent; chloroform), to yield 245 mg of N-ethyl-4-(1-imidazolyl)-β-oxo-α,α-trimethylenebenzenepropanethioamide. (Yield: 78.6%)

Melting point: 157°-157° C. IR absorption spectrum (KBr tablet) 167 cm⁻¹ (C═O) NMR (solvent; CDCl₃, δ value (ppm)): 1.16 (s, 3H), 1.81 (m, 1H), 2.07 (m, 1H), 2.87 (m, 2H), 2.98 (m, 2H), 3.62 (m, 2H), 7.05-7.15 (brd, 1H), 7.24 (s, 1H), 7.34 (s, 1H), 7.46 (d, 2H), 7.94 (s, 1H), 8.20 (d, 2H)

Examples 41 to 57

Following the same method as in Example 40, the compounds shown in Table 3 were obtained.

                                      TABLE 3                                      __________________________________________________________________________                Melting                                                             Example                                                                             Compound                                                                             point IR   NMR                                                      No.  No.   (°C.)                                                                         (cm.sup.-1)                                                                         Solvent; DCDl.sub.3, δ value                       __________________________________________________________________________                           (ppm)                                                    41   218    99-101                                                                              1670 1.61(s,6H), 2.38(s,3H), 3.16(d,3H), 7.18(d,2H),                                7.29(broad,1H), 7.78(d,2H)                               42   219   133-135                                                                              1650 1.61(s,6H), 3.16(d,3H), 3.84(s,3H), 6.36(d,2H),                                7.31(broad,1H), 7.90(d,2H)                               43   224   oil   1677 1.62(s,6H), 3.21(d,3H), 7.54(broad,1H),                                        7.69(d,2H),                                                                    7.95(d,2H)                                               44   263   101-102                                                                              1670 1.62(s,6H), 2.36(s,3H), 3.17(d,3H),                                            7.2-7.4(broad,3H),                                                             7.6-7.7(m,2H)                                            45   264   73.5-74.5                                                                            1675 1.63(s,3H), 3.17(d,3H), 3.80(s,3H), 7.06(dd,1H),                               7.2-                                                                           7.3(broad,1H), 7.31(d,1H), 7.43-7.48(m,2H)               46   265   138   1680 1.66(s,3H), 3.20(d,3H), 7.21(s,1H), 7.30(s,1H),                                7.52(m,2H), 7.6-7.9(broad,1H), 7.88(m,2H),                                     8.00(s,1H)                                               47   302   152.5-163.5                                                                          1680 1.39(s,3H), 3,16(d,3H), 7.07(s,1H), 7.08(s,1H),                                7.32(d,1H), 7.42(m,2H), 7.50(m,1H), 7.53(s,1H),                                7.7-7.9(broad,1H)                                        48   338   183-184                                                                              1665 0.75(t,6H), 2.1-2.3(m,4H), 3.22(d,3H), 7.23(s,1H),                             7.32(s,1H), 7.42(d,2H), 7.93(s,1H), 8.08(d,2H)           49   351   150-151                                                                              1684 1.80(m,1H), 2.05(m,1H), 2.85(m,2H), 2.95(m,2H),                                6.10(d,3H), 3.85(s,3H), 6.89(d,2H), 7.40(broad,1H),                            7.95(d,2H)                                               50   423   174-175                                                                              1663 1.81(m,1H), 2.04(m,1H), 2.86(m,1H), 2.97(m,2H),                                3.12(d,3H), 3.93(s,3H), 7.06(d,1H), 7.18(s,1H),                                7.23(s,1H), 7.2-7.3(broad,1H), 7.83(s,1H),                                     8.03(s,1H), 8.05(dd,1H)                                  51   435   165-167                                                                              1632 1.80(m,1H), 2.05(m,1H), 2.86(m,2H), 2.98(m,2H),                                3.10(d,3H), 3.90(s,3H), 3.93(m,3H), 6.86(d,1H),                                7.31(broad,1H), 7.55(d,1H), 7.64(q,1H)                   52   436   123.5-124.5                                                                          1665 1.82(m,1H), 2.06(m,1H), 2.85(m,2H), 3.05(m,2H),                                3.26(d,3H), 6.37(m,2H), 7.14(m,2H), 7.2-                                       7.3(broad,1H), 7.47(t,1H), 7.56(m,1H), 7.82(m,1H),                             8.10(m,1H)                                               53   497   124-126                                                                              1665 1.16-1.32(m,3H), 1.52-1.74(m,3H), 1.94-2.12(m,2H),                             2.40-3.16(m,2H), 3.16(d,3H), 7.35-7.53(m,4H),                                  7.80(d,2H)                                               54   498   189-191                                                                              1665 1.18(t,3H), 1.2-1.3(broad,4H), 1.5-1.65(broad,2H),                             1.9-                                                                           2.1(m,2H), 2.2-2.6(m,2H), 3.70(m,2H), 7.24(s,1H),                              7.33(s,1H), 7.43(d,2H), 7.93(s,1H), 8.00(d,2H)           55   503   137-139                                                                              1675 0.84(d,3H), 1.37-1.53(m,3H), 1.75-1.87(m,1H),                                  2.00-                                                                          2.13(m,1H), 2.77-2.89(m,2H), 2.94-3.05(m,2H),                                  3.57-                                                                          3.64(m,2H), 7.12(broad,1H), 7.24(s,1H),                                        7.33(s,1H),                                                                    7.47(d,2H), 7.94(s,1H), 8.15(d2H)                        56   505   amorphous                                                                            1665 1.88-2.12(m,2H), 2.60-3.40(m,4H), 2.99(s,3H),                                  3.36(m,3H), 7.23(s,1H), 7.32(s,1H), 7.43(d,2H),                                7.93(s,1H), 8.30(d,2H)                                   57   509     135-135.5                                                                          1667 1.75-2.0(m,5H), 2.0-2.15(m,1H), 2.6-3.2(broad,4H),                             3.23-3.3(broad,2H), 3.80(t,2H), 3.92(s,3H),                                    7.05(d,1H), 7.18(s,1H), 7.29(s,1H), 7.88(s,1H),                                7.19(d,1H), 8.21(dd,1H)                                  __________________________________________________________________________

Reference Example 2 ##STR10##

α-Methylpropiophenone (0.75 g (5.0 mmol)) was dissolved in 15 ml of tetrahydrofuran, followed by addition of a solution of 0.61 g (5.5 mmol) of potassium t-butoxide in 15 ml of tetrahydrofuran under ice cooling for agitation for 45 minutes. To the solution was added 330 μl of carbon disulfide for agitation, under ice cooling, for 1 hour, followed by addition of 1.40 g (5.5 mmol) of 2-chloro-1-methylpyridinium iodide and 550 mg (5.5 mmol) of triethylamine, for agitation for 15 minutes, to produce the dithioester derivative (IV). Without further treatment, the reaction solution was subjected to the next reaction.

Example 58

Synthesis of α, α-dimethyl-β-oxobenzenepropanethioamide (Compound No. 105 of Table 1) ##STR11##

To the reaction solution produced in Reference Example 2 was added 1 ml of an aqueous 28% ammonia solution, for agitation for 4 hours, Subsequently, water was added to the reaction solution for extraction into ethyl acetate. The ethyl acetate phase was washed in water and aqueous saturated sodium chloride solution, dried over sodium sulfate for distilling off the solvent, and the resulting crude crystal was purified by silica gel column chromatography (elution solvent; ethyl acetate), to yield 160 mg of α, α-dimethyl-β-oxobenzenepropanethioamide. (Yield: 15.4%)

Melting point 172°-175° C. IR absorption spectrum (KBr tablet): 1664 cm⁻¹ (C═O) NMR (solvent; CDCl₃, δ value (ppm)): 1.64 (s, 6H), 7.41 (t, 2H), 7.53 (t, 1H), 7.95 (d, 2H)

Example 59

Following the same method as in Example 58, 4-(2-pyridyl)-α, α, N-trimethylbenzenepropanethioamide (Compound No. 258 of Table 1) was obtained. (Yield: 78.6%)

Melting point: 172°-175° C. IR absorption spectrum (KBr tablet): 1666 cm⁻¹ (C=O) NMR (solvent; CDCl₃, δ value (ppm)): 1.64 (s, 6H), 3.17 (d, 3H), 7.27-7.3 (broad, 1H), 7.54 (m, 2H), 7.74 (m, 2H)

Example 60

Synthesis of 4-methoxy-N-methyl-3-nitro-β-oxo-α, α-trimethylenebenzenepropanethioamide (Compound No. 487 of Table 1) ##STR12##

4-Methoxy-N-methyloxo-α, α-trimethylene-β-benzenepropanethioamide (560 mg (2.1 mmol)) was added to 10 ml of fuming nitric acid while keeping the reaction temperature at -40° C. or less. After the termination of the addition, agitation was further effected at the same temperature for 30 minutes. After the termination of the reaction, the reaction solution was poured into ice-cold water for extraction into chloroform. The chloroform phase was washed in water and aqueous saturated sodium chloride solution, dried over sodium sulfate for distilling off the solvent, and the resulting residue was purified by silica gel column chromatography, to produce 140 mg of 4-methoxy-N-methyl-3-nitro-3-oxo-α,α-trimethylenebenzenepropanethioamide. (Yield: 21.4%)

Melting point: 145°-146° C. IR absorption spectrum (KBr tablet): 1665 cm⁻¹ (C═O) NMR (solvent; CDCl₃, δ value (ppm)): 1.81 (m, 1H), 2.06 (m, 1H), 2.84 (m, 2H), 2.97 (m, 2H), 3.12 (d, 3H), 4.01 (s, 3H), 7.09 (d, 2H), 7.2-7.3 (brd, 1H), 8.23 (dd, 1H), 8.52 (d, 1H)

Examples 61 to 71

Following the same method as in Example 58, the compounds shown in Table 4 were obtained.

                                      TABLE 4                                      __________________________________________________________________________                  Melting                                                           Example                                                                              Compound                                                                              point   IR    NMR                                                 No.   No.    (°C.)                                                                           (cm.sup.-1)                                                                          Solvent; CDCl.sub.3, δ value                  __________________________________________________________________________                                (ppm)                                               61    270    149-151 1689  1.67(s,6H), 3.22(d,3H), 7.20(m,2H),                                            7.50-7.65(m,3H),                                                               7.84(m,1H), 8.01(m,1H)                              62    275    164-165 1682  1.65(s,6H), 2.38(s,3H), 3.20(d,3H),                                            7.02(dd,2H),                                                                   7.30-7.55(m,3H), 7.82(m,1H), 7.93(m,1H),            63    291    162     1672  1.64(s,6H), 3.18(d,3H), 3.92(s,3H),                                            7.03(d,1H),                                                                    7.18(d,1H), 7.19(s,1H), 7.35(broad,1H),                                        7.79(s,1H),                                                                    7.95(s,1H), 8.00(dd,1H)                             64    292    amorphous                                                                              1676  1.43(t,3H), 1.66(s,6H), 3.19(d,3H),                                            4.16(q,2H),                                                                    7.01(d,1H), 7.10(s,1H), 7.21(s,1H),                                            7.77(s,1H),                                                                    7.94(d,1H), 8.01(dd,1H), 8.66(broad,1H)             65    305    145-146 1693  1.27(d,6H), 1.46(s,6H), 2.78(m,1H),                                            3.18(d,3H),                                                                    6.79(d,1H), 7.03(d,1H), 7.28-7.33(m,1H),                                       7.43-7.58(m,3H), 7.80(s,1H),                        66    337    192-193 1678  1.63(s,6H), 3.14(d,3H), 3.82(s,6H),                                            3.90(s,3H), 7.10(broad,1H), 7.25(s,2H)              67    512    amorphous                                                                              1676  1.65(s,6H), 3.19(d,3H), 3.66(s,3H),                                            7.03(d,1H),                                                                    7.09(d,1H), 7.19(d,1H), 7.36(broad,1H),                                        7.82(d,1H), 8.12(dd,1H)                             68    513    206     1676  1.64(s,6H), 2.19(s,3H), 3.18(d,3H),                                            2.86(s,3H),                                                                    6.88(s,1H), 7.01(d,1H), 7.02(s,1H),                                            7.51(broad,1H), 7.81(d,1H), 8.07(dd,1H)             69    515    173.5-174                                                                              1680  1.64(s,6H), 3.16(d,3H), 3.25(s,3H),                                            3.85(s,3H),                                                                    4.36(s,2H), 6.99(s,1H), 7.01(d,1H),                                            7.35(broad,1H), 7.90(d,1H), 8.07(dd,1H)             70    516    165-168 1684  1.35(t,3H), 1.65(s,6H), 3.19(d,3H),                                            4.12(q,2H),                                                      (decomposition)                                                                              7.00(d,1H), 7.08(d,1H), 7.18(d,1H),                                            7.41(broad,1H), 7.81(d,1H), 8.09(dd,1H)             71    517    178-179 1676  1.34(t,3H), 1.64(s,6H), 2.21(s,3H),                                            3.18(d,3H),                                                                    4.11(q,2H), 6.87(s,1H), 6.99(d,1H),                                            7.01(s,1H),                                                                    7.47(broad,1H), 7.80(d,1H), 8.03(dd,1H)             72     6     185-187 1671  1.84(m,1H), 2.10(m,1H), 2.9-3.1(m,4H),                                         6.85(broad,1H), 7.24(s,1H), 7.34(s,1H),                                        7.04(broad,1H), 7.47(d,2H), 7.95(s,1H),                                        8.14(d,2H)                                          __________________________________________________________________________

Test Example 1

The aorta thoracica of a Wistar rat was resected and then suspended in a Klebs-Heneleit solution kept at 37° C., according to the Weir and Weston's method (Br. J. Pharmac., 88, 121, (1986)), to determine the dose (IC30 20 mMK) of a drug suppressing 30% of 20 mMK shrinkage. As control, the same test done about the known compound A described in Bull. Soc. Chem. Fr., 1975, 829.

                  TABLE 5                                                          ______________________________________                                          ##STR13##                                                                     Compound No.  Rat aorta                                                        in Table 1    IC30 20 mMk (μM)                                              ______________________________________                                         224           5.0                                                              226           13.0                                                             265           0.62                                                             356           2.1                                                              357           0.18                                                             Compound A    13.6                                                             ______________________________________                                    

Test Example 2

At a dose of 3 mg/kg or 10 mg/kg, the compound of the present invention was orally administered to spontaneous hypertensive rats (OKAMOTO-AOKI strain) with an average blood pressure of 150 mmHg or more. According to the direct method described by Nakano H. and Takayanagi K., Japanese Journal of Pharmacology, Vol. 25, 25 (1975), blood pressure and cardiac output were measured. Using the compound A used in the Test Example 1 as control, the same test was done.

The results 2 hours after the dosing are shown in Table 6.

                  TABLE 6                                                          ______________________________________                                                      Mean blood pressure (mmHg)                                        Compound No.                                                                              Dose    Value prior to                                                                              Blood pressure                                 in Table 1 mg/kg   dosing       decrease                                       ______________________________________                                         224        10      177.5        38.8                                           226        10      177.3        35.9                                           265         3      163.1        76.5                                           302        10      176.1        51.9                                           342        10      167.3        31.2                                           356        10      172.0        58.9                                           357        10      158.4        78.4                                           Compound A 10      180.3        14.1                                           ______________________________________                                     

What is claimed is:
 1. 4-(1imidazolyl)-N-methyl-β-oxo-α, α-trimethylenebenzenepropanethioamide, or the pharmaceutically acceptable acid addition salt thereof.
 2. A pharmaceutical composition containing the compound of claim 1 and a pharmaceutically acceptable carrier.
 3. A pharmaceutical composition for potassium channel opening, containing the compound of claim 1 and a pharmaceutically acceptable carrier.
 4. A method for treating hypertension, which comprises administering the compound of claim 1 to a patient suffering from hypertension.
 5. A method for treating asthma, which comprises administering the compound of claim 1 to a patient suffering from asthma. 